When to go · Issaquah
Issaquah in August
Great month. Inside Issaquah's best window: May–Oct for dry trails; late Sep–Oct for salmon runs.
Key facts
- Verdict
- Great
- Temperature
- 25°C (77°F)77°F (25°C) / 13°C (55°F)55°F (13°C)
- average high / low
- Rain days
- 6
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Issaquah's best window: May–Oct for dry trails; late Sep–Oct for salmon runs.
Is another month better than August?
No other month rates higher than August for Issaquah in this guide.
Weather in August
- IssaquahHighs around 25 °C (77 °F), lows around 13 °C (55 °F), rain on about 6 daysHighs around 77 °F (25 °C), lows around 55 °F (13 °C), rain on about 6 days
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Issaquah, side by side.
Verdict
Aug: Great
May: Great
Daytime high
Aug: 25 °C (77 °F)77 °F (25 °C)
May: 19 °C (66 °F)66 °F (19 °C)
Night low
Aug: 13 °C (55 °F)55 °F (13 °C)
May: 9 °C (48 °F)48 °F (9 °C)
Rain days
Aug: 6 (better)
May: 12
Crowds
Aug: High
May: Medium
Prices
Aug: High
May: Medium
Festivals listed
Aug: 0
May: 1
August: Inside Issaquah's best window: May–Oct for dry trails; late Sep–Oct for salmon runs.
May: Inside Issaquah's best window: May–Oct for dry trails; late Sep–Oct for salmon runs.
Issaquah: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.